$ perl -we'my @a=qw( a b c ); my $x = @a . "\n"; print $x' | od -c
0000000   3  \n
0000002

##</code><code>##

$ perl -we'my @a=qw( a b c ); my $x = @a "\n";'
String found where operator expected at -e line 1, near "@a "\n""
        (Missing operator before "\n"?)
syntax error at -e line 1, near "@a "\n""
Execution of -e aborted due to compilation errors.

##</code><code>##

$ perl -we'my @a=qw( a b c ); my $x = (@a, "\n"); print $x' | od -c
Useless use of private array in void context at -e line 1.
0000000  \n
0000001

##</code><code>##

$ perl -we'my @a=qw( a b c ); my @x = (@a, "\n"); print "[$_]" for @x' | od -c
0000000   [   a   ]   [   b   ]   [   c   ]   [  \n   ]
0000014